HEX
Server: Microsoft-IIS/10.0
System: Windows NT ITPWINWEBSVR22 10.0 build 20348 (Windows Server 2022) AMD64
User: www.conferencesearch.co.uk (0)
PHP: 8.3.30
Disabled: NONE
Upload Files
File: D:/hMailServer/Data/hyperflight.co.uk/robin/66/{66D124FC-477E-41D2-A2F3-2CA2EE958F95}.eml
Return-Path: sales@hyperflight.co.uk
Delivered-To: robin@hyperflight.co.uk
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Return-Path: <>
Message-ID: <1A80FE0F-DA04-4C49-8AC6-A923129FA74F@mail.itpartnership.com>
Date: Thu, 19 Mar 2026 22:28:31 +0000
From: mailer-daemon@mail.itpartnership.com
To: sales@hyperflight.co.uk
Subject: Message undeliverable: HyperFlight Order Confirmation & Invoice 107380
Content-Transfer-Encoding: quoted-printable
X-hMailServer-LoopCount: 2

Your message did not reach some or all of the intended recipients.

   Sent: Thu, 19 Mar 2026 22:28:16 -0000
   Subject: HyperFlight Order Confirmation & Invoice 107380

The following recipient(s) could not be reached:

philstevo2003@yahoo.com.au
   Error Type: SMTP
   Remote server (98.136.96.91) issued an error.
   hMailServer sent: .
   Remote server replied: 554 Message permanently deferred due to unresolvable RFC.5321 from domain. See https://senders.yahooinc.com/error-codes#unresolvable-from-domain



hMailServer